Pipe-coiling machine.



Patented July 4, 1911.

4 5 1 M m Z w 3 a w v v 2 Z O" o 3 fl L. G. SCHNEIDER. PIPE COILINGMACHINE. APPLIOATION FILED JUNE 4. 1910.

COLUMBIA PIANUaRAPn c0., WASHKNGTON. n. C.

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LEOPOLD C. SCHNEIDER, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY DIRECTAND MESNE ASSIGNMENTS, TO THE PHILADELPHIA PIPE BENDING COMPANY, A

CORPORATION OF NEW JERSEY.

PIPE-COILING MACHINE.

Specification of Letters Patent.

Patented July 4, 1911.

Application filed June 4, 1910. Serial No. 564,963.

To all whom it may concern:

Be it known that I, LEOPOLD G. SCHNEI- DER, a citizen of the UnitedStates, residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented certain new and useful Improvements in Pipe-Coiling Machines, of which the following is a specification.

My invention relates to a machine for coiling pipe, rod or similarstock.

My invention resides in such machine which comprises a former, such as acylinder or drum, which is rotated by any suitable means, the pipe beingpassed over guides or rollers, suitably positioned,- whereby the pipe orrod is Wound around the drum or former, together with means forautomatically and continuously pushing ofl of the drum or former thecoil as the coiling pro ceeds.

The pipe or rod may be heated previously to the coiling process in asuitable furnace or otherwise, the material then bending easily aroundthe former into the form of a coil, the coil formation or bendingoccurring at substantially the same place longitudinally of the former,and as the successive convolutions are formed, the previously formedconvolutions are pushed oil the former by the engagement of thepreferably last formed convolution by suitable rolls or other members.

My invention resides in other matters hereinafter described and claimed.

For an illustration of one of the forms my invention may take, referenceis to be had to the accompanying drawings, in which:

Figure 1 is a top plan view of the coiling machine. Fig. 2 is anelevational View of the same. Fig. 3 is a fragmentary vertical sectionalview. Fig. 1 is a fragmentary view showing means for starting the coil.Fig. 5 is a fragmentary vertical sectional view, some parts inelevation, showing means for exerting a longitudinal tension upon thecoil.

The pipe P is provided in suitable length to form the entire coil, orordinary lengths may be Welded end to end during the coiling process.The pipe P is led through a furnace F approximate to the coiling machineto heat the pipe to make it coil or bend with suitable facility. The endof the pipe is then led to the former or drum 9 and suitably clampedthereto, temporarily, as by tongs 10, as shown in Fig. 4:.

The roller 1 is mounted for rotation upon the vertical pin 2 carried bythe block 2 and slidable in the dove-tail slot 6 in the base or table 6.A bracket 4; is secured upon the table 6 and is tapped to receive thescrew 3, having handle 3 the inner end of the screw 3 being rotatablysecured to the lug 5 on the member 2 By turning the screw 3 by thehandle 3, the roller 1 may be fed inwardly or outwardly and adjusted toany desired position. After the pipe has been temporarily clamped to thedrum 9, as by tongs 10, the roller 1 is adjusted to engagement with thepipe as shown in Figs. 1 and 2. Then the former or drum 9 is rotateduntil a few turns or convolutions of the coil have been formed, and thenthe tongs may be removed and the frictional engagement of the pipe Pwith the cylinder or drum is sufficient to draw the pipe P and to windit about the drum 9. Any suitable number of rollers 11, having theiraxes preferably substantially horizontal and preferably radial to thedrum 9,'may be provided and engage the pipe on the under side of theconvolution last formed, thus sliding the entire coil longitudinally andupwardly on the drum or former 9, pushing the same beyond the former 9,convolutionby convolution, as the coil is formed. The coil as so pushedoff of and extending beyond the former 9 is shown at 12 in Figs. 2 and3. The rollers 11 are disposed at different heights according to thediameter of the pipe being coiled, so that all the rollers assist inproducing the sliding or longitudinal movement of the coil upon theformer 9. As here shown, three rollers 11 are shown and disposed at 120de grees with respect to each other. It is to be understood, however,that any suitable number of rollers suitably spaced may be employed. Therollers 11 have their pivotal pins supported in suitable uprights 13upon members 14: which may be slotted and bolted to the table 6 and heldin fixed position. The rollers 11 are preferably, as here shown,

idlers, that is, they are notdriven, either in definite relation withrespect to the drum, or otherwise.

The cylinder or former 9 may be made hollow, as shown, and may consistof any suitable material, such as cast iron, and may be bolted, as shownin Fig. 3, to a head 15 1 upon the vertical driving shaft lfihaving astep hearing at 17 and provided with a collar 18 beneath the table 6.Secured upon the shaft 16 is a bevel gear 19 with which meshes the bevelgear 20 secured upon the shaft 21, to which are secured a plurality ofgears 22, 23, 24 of diflerent diameters. On a shaft 25 are mounted gears26, 27, 28 adapted to mesh, respectively, with the gears 22, 23, 24c.The gears 26, 27, 28 may be moved to suitable meshing positionslongitudinally of the shaft 25, and secured in the desired meshingposition by set screw 29. Upon the shaft are disposed suitable tight andloose pulleys 30 and 31 which may be driven bybelt. Or an electric motoror any other suitable device may be coupled to the shaft 25,

As illustrated and described, a coil with neighboring convolutions closetogether is formed, and as the coiling proceeds the convolutionspreviously coiled are pushed off of and beyond the former 9. The processdescribed is a continuous one, in that the machine need not be stoppedat intervals to remove parts of the coil from the former or drum. As thecoil is formed and is progressively pushed off of and beyond the drum orformer 9, a bar 32 may be passed through the coil between neighboringconvolutions. The bar 32 may carry an eye bolt 33 in which may engage ahook 34 upon a cable or chain 35 attached to a crane, Windlass, or otherhoisting apparatus. By this means a longitudinal tension may be placedupon the coil as formed, thus assisting or adding to the longitudinallyapplied force which gradually and continuously moves the coil from theformer or drum 9, as the coil is formed. This longitudinal tension maybe applied in any desired degree, so as to minimize to a greater or lessdegree the amount of work required to be done by the machine in pushingor sliding the coil off the former longitudinally as the coil is formed.The force applied may be so small as to relieve the under portions ofthe coil of the weight of the portions above the bar 32, or the forcemay be so great as to be more than sufficient to relieve the underportion of the coil of this weight. Obviously, the longitudinal forcemay be applied in a horizontal direction if the former or drum revolvesabout a horizontal axis.

lVhile I have shown in the drawings a coil formed of a single pipe orrod, it is to be understood that a coil may be made of two or more pipesor rods simultaneously coiled side by side. In such case, the two ormore bedso pipes or rods are simultaneously wound by the former side byside. For this purpose the roller 1 may be made of greater height.

The drum or former 9 is not grooved on its periphery or circumference,but is smooth, allowing ready shifting or sliding of the coil as formedlongitudinally of the circumference of the drum.

WVhat I claim is:

1. In a machine for coiling pipe, rod, or similar material, a rotatableformer, and a roller idler independent of said former engaging the coilas formed to move the same longitudinally on said former.

2. In a machine for coiling pipe, rod, or similar material, a rotatableformer, and a plurality of rollers disposed at different positionslongitudinally of said former to engage the coil to move the samelongitudinally of the former.

3. In a machine for coiling pipe, rod, or similar material, a rotatableformer, a roller engaged by the pipe or rod for causing the same to windupon said former, and means independent of said former for continuouslyshifting the coil as formed longitudinally on said former.

4:. In a pipe coiling machine, a rotatable former, means for rotatingsaid former, said former when rotated drawing the pipe and winding thesame upon itself, and means independent of said former engaging the coilas formed to move the same longitudinally on said former. V

5. In a pipe coiling machine, a former, means for rotating the same,said former when rotated drawing the pipe and winding the same uponitself, and means independent of said former engaging the lastconvolution of the coil as formed to move the coil longitudinally onsaid former.

6. In a pipe coiling machine, a rotatable smooth drum adapted to wind onto itself a plurality of convolutions of pipe frictionally held by saiddrum, and means independent of said drum for engaging the pipe coil asformed to move the coil longitudinally on said drum. 7

7. I11 a pipe coiling machine, a rotatable smooth drum, means forrotating said drum, said drum when rotated drawing the pipe and windingthe same upon itself in a plurality of convolutions all in engagementwith said drum, and means independent of said drum for shifting the coilas formed longitudinally on said drum.

8. In a pipe coiling machine, a rotatable smooth drum adapted to wind onto itself a plurality of convolutions of pipe, and a roller idler forengaging the pipe coil as formed to move the coil longitudinally on saiddrum.

9. In a pipe coiling machine, a rotatable and winding the same uponitself in a plurality of convolutions all in engagement with said drum,and a roller idler for shifting the coil as formed longitudinally onsaid drum.

10. In a pipe coiling machine, a rotatable smooth drum,'means forrotating said drum, said drum when rotated drawing the pipe and windingthe same upon itself in a plurality of convolutions all in engagementwith said drum, said drum being of substantially the same diameter for alength corresponding with the width of a plurality of said pipeconvolutions, and means independent of said drum engaging the side ofthe last convolution wound on .said drum for moving the coillongitudinally on said drum.

11. In a pipe coilingmachine, a rotatable smooth drum, means forrotating said drum, a roller for guiding pipe on to said drum, said drumwhen rotated frictionally engaging the pipe and drawing and winding thesame upon itself in a plurality of convolutions in engagement with saiddrum, and

means independent of said roller and said drum for shifting the coil asformed longitudinally on said drum.

12. In a pipe coiling machine, a rotatable smooth drum, means forrotating said drum, a roller for guiding pipe on to said drum,

said drum when rotated frictionally engaging the pipe and drawing andwinding the same upon itself in a plurality of convolutions inengagement with said drum, and a plurality of means independent of saidroller and said drum and disposed at diflerent positions longitudinallyand circumferentially of said drum for shifting the coil as formedlongitudinally on said drum.

In testimony whereof I have hereunto affixed my signature in thepresence of the two subscribing witnesses.

LEOPOLD C. SCHNEIDER.

Witnesses:

ELEANOR T. MOCALL, ANNA E. STEINBooK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

